【作者】 曹礼； 郭图丽； 周宏鑫； 刘月桃； 陈杰； 李婷； 雷玉明；

【Author】 Cao Li;Guo Tuli;Zhou Hongxin;Liu Yuetao;Chen Jie;Li Ting;Lei Yuming;College of Agriculture and Biotechnology,Hexi University;Key Laboratory of Hexi Corridor Resourses Utilization of Gansu,Hexi University;

【机构】 河西学院农业与生物技术学院； 河西学院甘肃省河西走廊特色资源利用重点实验室；

【摘要】 通过富集培养的方法,从造纸厂的废水中筛选到两株耐锰菌株MN1和MN6,对其鉴定并研究了不同条件下的生长特性。结合其生理生化特征和16S rRNA基因序列,将菌株MN1和MN6分别鉴定为Isoptericola sp.和Promicromonospora sp.。菌株MN1可以耐受800 mg/L的锰,而菌株MN6可耐受2 000 mg/L的锰。Fe²⁺和Mn²⁺能促进菌株MN1和MN6的生长,而Zn²⁺抑制它们的生长。菌株MN1有较广的抗菌谱,而菌株MN6的抗菌谱较窄。更多还原

【Abstract】 By enrichment culture method,two manganese-resistant bacteria MN1 and MN6 were isolated from waste water of paper mill.Two strains were identified and the growth characteristics were studied.Combined with the characteristics of physiological and biochemical and 16 S rRNA gene sequence,strain MN1 and MN6 were identified as Isoptericola sp.and Promicromonospora sp.,respectively.Strain MN1 could tolerate 800 mg/L manganese,while strain MN6 could tolerate 2 000mg/L manganese.The growth of strains MN1 and MN6 were promoted by Fe²⁺ and Mn²⁺,but inhibited by Zn²⁺.Strain MN1 had wider antimicrobial spectrum than strain MN6.更多还原